Canadian |
British |
American |
Notes |
abridgement abridgment(var)
|
abridgement
|
abridgment
|
|
acknowledgement acknowledgment(var)
|
acknowledgement
|
acknowledgment acknowledgement(var)
|
|
advertise
|
advertise
|
advertise advertize(var)
|
|
aegis egis(var)
|
aegis
|
egis
|
|
aeon eon(var)
|
aeon
|
eon
|
|
aesthetic esthetic(var)
|
aesthetic
|
esthetic aesthetic(var)
|
|
aging ageing(var)
|
ageing aging
|
aging
|
|
airplane
|
aeroplane
|
airplane
|
|
aluminum
|
aluminium
|
aluminum
|
|
amid amidst(var)
|
amid amidst(var)
|
amid
|
|
amoeba
|
amoeba
|
ameba
|
|
among amongst(var)
|
among amongst(var)
|
among
|
|
amortization
|
amortisation amortization(var)
|
amortization
|
|
amortize
|
amortise amortize(var)
|
amortize
|
|
amphitheatre
|
amphitheatre
|
amphitheater
|
|
anaesthesia anesthesia(var)
|
anaesthesia
|
anesthesia
|
|
analogue analog(var)
|
analogue
|
analogue analog
|
analog when used as a technical term (i.e. not digital)
|
analyze analyse(var)
|
analyse
|
analyze
|
|
anemia anaemia(var)
|
anaemia
|
anemia
|
|
anemic anaemic(var)
|
anaemic
|
anemic
|
|
annex
|
annexe annex(var)
|
annex
|
noun meaning 'something added'; verb is always annex
|
apologize
|
apologise apologize(var)
|
apologize
|
|
appal appall(var)
|
appal
|
appall
|
appalled/appalling in all countries
|
appetizer
|
appetiser appetizer(var)
|
appetizer
|
|
arbour arbor(var)
|
arbour
|
arbor
|
but 'arboreal' in all countries
|
archaeology archeology(var)
|
archaeology
|
archeology archaeology(var)
|
|
ardour ardor(var)
|
ardour
|
ardor
|
|
artifact
|
artefact
|
artifact
|
|
armour armor(var)
|
armour
|
armor
|
|
authorize
|
authorise authorize(var)
|
authorize
|
|
axe
|
axe
|
ax
|
|
|